Pathology 2420A Lecture Notes - Lecture 11: Diverticular Disease, Pus, Gastric Mucosa

• School: Western University
• Department: Pathology
• Course: Pathology 2420A
• Professor: Candace Gibson

Document Summary

Gi tract (distal small intestine, colon or rectum): hernia - the protrusion of an organ or other structure through the wall of the cavity normally containing it. Inflammatory bowel disease - includes both crohn"s disease and ulcerative colitis, and is characterized by inflammation of the bowel, an unknown casual agent, a pattern of familial inheritance and systemic manifestations. Normal function: the function of the gut is digestion and absorption, food and bowel contents are propelled through the gut by coordinated contractions of the muscle layer, called peristalsis. The role of the large bowel is to absorb water and electrolytes, producing formed stools: normally, bacteria are found only in the large bowel. Transverse section through the esophagus shows narrowing of esophagus due to growth of a squamous cell carcinoma and its close proximity and spread to the aorta and trachea. Helicobacter pylori (hp: hp is the cause of up to 80% of gastric ulcers and over 90% of duodenal ulcers.